Lever for stone-channeling machines



2 Sheets-Sheet 1.

(No Model.)

J. HENGEN.

LEVER FOB STONE GHANNBLING'MAGHINES.

Patented June 23,1891.

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2 Sheets-Sheet 2.

(No Model.)

J. HENGEN.

' LEVER FOR STONE GHANNELING MACHINES.

BIO-4541589- Patented June 23, 91.

UNITED STATES PATENT OFFICE.

JACOB HENGEN, OF NORTH AMHERST, OHIO.

LEVER FOR STONE-CHANNELING MACHINES.

SPECIFICATION forming part of Letters Patent No. 454,589, dated June 23, 1891. Application filed August 23, 1890. Serial No. 362,858- (No model.)

To aZZ whom it may concern;

Be it known that I, JACOB HENGEN, a citizen of the United States, residing at North Amherst, in the county of Lorain and State of Ohio, have invented certain new and useful Improvements in Levers for Stone-Channeling Machines; and I do hereby declare that the followingis a full, clear, and exact description of the invention, wh ch will en able others skilled in the art to which it appertains to make and use the same.

My invention relates to improvements in levers for stone-channeling machines, and is an improvement particularly on the style of lever employed in what is known as the ardwell channeling-machine.

In the machines upon which this invention an improvement two levers are employed which are pivotally connected at one end and united by stirrups a short distance from the pivot-point, with a rubber spring interposed between the levers and another rubber spring between the connecting-plate on the yokes and the upper lever.

In the operation of the machine excessive strain is brought upon. the levers at the point where they are connected by the stirrups, and it follows in consequence that the stirrnps are exceedingly liable to be broken and are repeatedly and frequently broken, entailing considerable expense and loss of time in having them replaced. I have overcome this objection by forming a lever with a curved overreaching end, between which end and the body of the lever the necessary springs and another lever forming part of the construction are interposed. This enables me to dispense entirely with the use of stirrups and to form a combination which is durable and serviceable, and which is not liable to breakage, as in the case of the construction referred to.

To this end the invention consists in a lever constructed substantially as shown and described, and in the arrangement of the springs and other parts, all as particularly pointed out in the claims.

In the accompanying drawings, Figure l is a side elevation of my improved lever and the associated parts. Fig. 2 is an end view of the upper arm of the main lever with the adjusting-plate in position thereon. Fig. 3 is a secformed by bending one end thereof around substantially in hook shape with the bent end or overlapping arm practically straight and substantially in parallel lines with the body of the lever beneath the arm. The space between these two parts of the lever is designed to be just sufficient to introduce the second lever B, with interposed springs C and B, which are designed to serve the same purpose as springs in the well-known. machine upon which this is an improvement. The lever B is pivoted atits inner end upon the upper portion of the fixed upright E, which forms a permanent part of these machines, and the lever A is likewise pivotally connected with upright E, just back of the point at which it is bent or curved to form the upper and overhanging arm. The upright E extends just high enough to bring the lever B midway between the body and the overhanging arm of lever A, and the springs C and D are located forward of the'pivot-point and between the extremity of the said arm and the body of lever A.

A suitable cup F serves to hold the rubber C, and this cup is supported on a convex rocker-base G, to compensate for the backand-forth movement of the overhanging arm of lever A. This base-plate has upwardlyprojecting portions 9 at its ends serving to confine cup F and ears g, through which it is fastened upon lever 13. A rubber spring block D is secured between the body of lever A and lever B, forward of their pivot-points, by means of two correspondin g flanged plates H, fastened, respectively, to levers A and B, through cars 71/ on said plates.

The tension of the springs C and D is controlled by the set-screws K, which pass down through the end of the arm of lever A, and bear upon the plate L, which forms the upper bearing-surface for the rubber block C. Setscrews M likewise are provided for this plate, which pass through the ca rs thereof and serve to support said plate upon the said arm. These improvements are adapted to be placed not merely upon new machines, but are likewise adapted to be attached to machines now in use, and the size of the respective parts and their construction and arrangement are such as to make such adaptation easy andv convenient.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. A lever for a channeling-machine, having an overhanging arm substantially parallel to thebody ot the lever; an intermediate lever pivoted at its rear end, and separate springs, one above the other, between said levers, substantially as described.

2. A lever having one end bent substantially in hook shape, an intermediate lever, and springs between said levers, substantially as described.

3. A lever having one end bent around parallel to the body thereof, a second lever midway between the parallel portions of the firstnamed lever, and springs on opposite sides of the second lever bearing on the first, substantially as described.

4. The main lever having an overhanging arm, an intermediate lever having a rocking plate, and springs between said levers above and below the intermediate lever, one of said vers beneath the intermediate lever, substantially as described.

7. The main lever, bent substantially in hook shape at one end and having its pivotpoint at the beginning of the bend, a lever pivoted centrally in said hook portion, and springs between said levers in front of their pivots, the main lever forming both the outer bearings or supports for said springs, substantially as described.

Witness my hand to the foregoing specification this 1st day of August, 1890.

JACOB HENGEN.

Witnesses:

H. G. REDINGTON, HENRY HIRSOHING. 

